{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "463741311",
    "entityType": "User",
    "nonce": "0x248e3e911ac5676e7a96d14887d058b87615a62d1248574ef4ccadcb4283ce49",
    "signature": "0x2cb8f6e627ddfd0222ba91fbc4346ecf5a0c6e008e923260cc3f498bd97e0161252adec5dc65ee96116d146da6aeca274a97d0e5d420f844d67c1bfb87d337e81b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}